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  <title>Document</title>
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  <script>
       //请实现以下效果
       function add (a, b, c,) {
            return a + b + c 
        }
        // console.log(add.length);

        const res = add(1, 2, 3) //6

        //要求声明一个curry函数，函数add经过curry函数的处理后，每次调用只能接收一个参数
        const curry = (fn,...args) => { 
          return args.length >= fn.length? fn(...args): curry.bind(null,fn, ...args)
      }

        let addCurry = curry(add)

        // console.log(addCurry);
        const res2 = addCurry(1)(2)(3) //6

        console.log(res2)
  </script>
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